540 FLEX® Water-Powered Emergency Backup Sump Pump System. Provides basement and crawlspace protection. No Battery – No Electricity Required. Works during power outages or high water events. Powered by your municipal water supply. Requires an uninterrupted water source to operate. Will NOT work with homes supplied by well pumps. Water under pressure will flow through the 540 FLEXT. Creates a vacuum and causes the water to be drawn out. Removes 2 gallons of sump water per 1 gallon used. Accepts 40 PSI up to 80PSI Inlet Supply Pressure. Performance varies w/ inlet water source/pressure & pumping head. 3/4 ” NPT Water Inlet Connection & 1-1/2″ Discharge. Compatible with most residential plumbing systems. Horizontal or Vertical Installation. Small footprint design works in 18″ x 22″ pits. Includes push-to-connect fitting (field-installed). Not Intended For Use As A Primary Water Removal Unit. Please Note – All Output Specified Is Based On 60 PSI (Inlet). For Indoor Use Only. Power Equipment Direct was founded on the premise of simplified shopping. Customers could sort through all of the leading power equipment products online from the comfort of their homes – no traffic jams, no crowds, no scratched tailgates. Founder Jon Hoch, launched his first web store from his basement in 2003. Several years and a couple of web stores later, Power Equipment Direct is one of the leading online power equipment e-tailers with millions of dollars in annual sales. The company owns more than a dozen power equipment-related web addresses and plans to open more specialty superstores in the very near future. Exceptions include some handheld lawn tools. Smaller items are also available for Next Day Air and Two Day Air for an additional charge dependent on the weight of the item. Boxes or APO/FPO addresses at this time. Each item which this applies to, will contain information in the respective listing description information. Thank you for your time and understanding regarding this topic. In some rare instances, you may need some help with a return. Simply contact our Customer Service team in order to discuss return options for unopened merchandise. Simply contact our Customer Service team in order to discuss return options for opened merchandise. If the product has been gassed or oiled, it needs to be taken to an authorized service center. Concealed damage claims must be reported immediately. On occasion, the outer carton may look damaged, but the product inside the box is perfectly fine. Do not sign for damaged products. If you think your product is defective, don’t worry. They have expert technicians standing by to help solve your issue. Please have your model number and serial number available for fastest service. And we will respond within 24-48 hours. Customer Service hours of operation are 7am – 7pm CST, Monday – Friday. View more great items. This listing is currently undergoing maintenance, we apologise for any inconvenience caused.